Document Outline

• 01-GRE Configuration
  • GRE Configuration
    • GRE Overview
      • Introduction to GRE
        • Encapsulation process
        • Format of an encapsulated packet
        • De-encapsulation process
      • GRE Security Options
      • GRE Applications
        • Communication between local networks through a single-protocol backbone
        • Scope enlargement of a hop-limited protocol such as RIP
        • VPN creation by connecting discontinuous subnets
        • GRE-IPsec tunnel application
      • Protocols and Standards
    • Configuring a GRE over IPv4 Tunnel
      • Configuration Prerequisites
      • Configuration Procedure
    • Configuring a GRE over IPv6 Tunnel
      • Configuration Prerequisites
      • Configuration Procedure
    • Displaying and Maintaining GRE
    • GRE over IPv4 Tunnel Configuration Example
      • Network requirements
      • Configuration procedure
    • GRE over IPv6 Tunnel Configuration Example
      • Network requirements
      • Configuration procedure
    • Troubleshooting GRE
  • Point to Multi-Point GRE Tunnel Configuration
    • P2MP GRE Tunnel Overview
      • Background
      • Operation of a P2MP GRE Tunnel
      • P2MP GRE Tunnel Backup
        • GRE tunnel backup at a branch
        • GRE tunnel backup at the headquarters
      • Advantages and Restrictions of the P2MP GRE Tunnel Technology
    • Configuring a P2MP GRE Tunnel
      • Configuration Prerequisites
      • Configuring a P2MP GRE Tunnel
    • Displaying and Maintaining P2MP GRE Tunnels
    • P2MP GRE Tunnel Configuration Examples
      • Basic P2MP GRE Tunnel Configuration Example
        • Network requirements
        • Configuration procedure
        • Verification
      • Configuration Example for P2MP GRE Tunnel Backup at the Headquarters
        • Network requirements
        • Configuration procedure
        • Verification
      • Configuration Example for P2MP GRE Tunnel Backup at a Branch
        • Network requirements
        • Configuration procedure
        • Verification
• 02-L2TP Configuration
  • L2TP Configuration
    • L2TP Overview
      • Introduction
      • Typical L2TP Networking Application
      • Basic Concepts of L2TP
        • Background of L2TP
        • L2TP architecture
        • Tunnel and session
        • Control message and data message
      • L2TP Tunneling Modes and Tunnel Establishment Process
        • Three typical L2TP tunneling modes
        • L2TP tunnel establishment process
      • L2TP Features
      • Protocols and Standards
    • L2TP Configuration Task List
    • Configuring Basic L2TP Capability
    • Configuring an LAC
      • Configuring an LAC to Initiate Tunneling Requests for Specified Users
      • Configuring an LAC to Transfer AVP Data in Hidden Mode
      • Configuring AAA Authentication for VPN Users on LAC Side
      • Configuring an LAC to Establish an L2TP Tunnel
    • Configuring an LNS
      • Creating a Virtual Template Interface
      • Configuring the Local Address and the Address Pool for Allocation
      • Configuring an LNS to Grant Certain L2TP Tunneling Requests
      • Configuring User Authentication on an LNS
        • Configuring mandatory CHAP authentication
        • Configuring LCP re-negotiation
      • Configuring AAA Authentication for VPN Users on LNS Side
      • Enabling L2TP Multi-Instance
      • Specifying to Send ACCM
    • Configuring L2TP Connection Parameters
      • Configuring L2TP Tunnel Authentication
      • Setting the Hello Interval
      • Enabling Tunnel Flow Control
      • Disconnecting Tunnels by Force
    • Displaying and Maintaining L2TP
    • L2TP Configuration Examples
      • Configuration Example for NAS-Initiated VPN
        • Network requirements
        • Configuration procedure
      • Configuration Example for Client-Initiated VPN
        • Network requirements
        • Configuration procedure
      • Configuration Example for LAC-Auto-Initiated VPN
        • Network requirements
        • Configuraton procedure
      • Configuration Example for L2TP Multi-Domain Application
        • Network requirements
        • Configuration procedure
      • Complicated Network Application
    • Troubleshooting L2TP
• 03-L3VPN Configuration
  • L3VPN Configuration
    • L3VPN Overview
      • Introduction to L3VPN
      • L3VPN Concepts
        • Site
        • Address space overlapping
        • VPN instance
        • VPN target attributes
        • Routing policy
      • L3VPN Networking Schemes
        • Basic VPN networking scheme
        • Hub and spoke networking scheme
        • Extranet networking scheme
      • OSPF VPN Extension
        • OSPF multi-instance on PE
    • L3VPN Configuration Task List
    • Configuring VPN Instances
      • Creating a VPN Instance
      • Associating a VPN Instance with an Interface
      • Configuring Route Related Attributes of a VPN Instance
    • Configuring Basic L3VPN
      • Configuration Prerequisites
      • Configuring a VPN Instance
      • Configuring Route Advertisement between PE and CE
        • Configuring static routes between PEs and CEs
        • Configuring RIP between PE and CE
        • Configuring OSPF between PE and CE
        • Configuring EBGP Between PE and CE
    • Displaying and Maintaining L3VPN
      • Resetting BGP Connections
      • Displaying and Maintaining L3VPN
    • L3VPN Configuration Example
      • Network requirements
      • Configuration procedure